Forward/backward spatial reconstruction method for directions of arrival estimation of uncorrelated and coherent signals

被引：8

作者：

Cai, B. ^{[1
]}

Li, Y. -M. ^{[2
]}

Wang, H. -Y. ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Commun Engn, Wuhan 430074, Hubei, Peoples R China

[2] Wuhan Vocat Coll Software & Engineer, Dept Elect Informat Engn, Wuhan, Hubei, Peoples R China

来源：

IET MICROWAVES ANTENNAS & PROPAGATION | 2012年 / 6卷 / 13期

关键词：

Signal analysis;

D O I：

10.1049/iet-map.2012.0200

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An effective method to classify the directions of arrival (DOA) estimation of narrow-band signals in a coherent environment is proposed. The basic idea is to rearrange the correlation matrix. By combining the forward reconstructed correlation matrix with its conjugated backward form together, it is always possible to estimate any left perpendicular2(M + 1)/3right perpendicular one-dimensional DOAs using an M-element uniform linear array (ULA) and any left perpendicular2(3 - 2 root 2)MNright perpendicular two-dimensional DOAs using an M x N-element uniform rectangular array. Other arrays that contain centrosymmetric sub-arrays can also be applied with our method. Simulation results demonstrate that the proposed method could both enlarge the effective aperture and reduce the computational complexity.

引用

页码：1498 / 1505

页数：8

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